it seems that i've run into a SNAFU.. i recently acquired a mint Weiand 04D 2x4 intake for my 56 324 olds.. low and behold the bolt holes do not line up.. if i shift the manifold to the passenger head the bolts go in, but then the driver side is off, and the manifold isn't centered between the heads.. and vise versa. when the manifold is snugged down on on side it still lays flat on the opposite side (no gap at all) the port placement measurements between the stock, and Weiand jive.. when the intake is centered where it it looks like it wants to be it seems that the bolt holes need to get hogged out.... to me this seems pretty dicey, but i'm at a loss- am i missing something here??? i figured that before i go ahead and attempt this , i'd see if any of you guys have run into this... i attached some images.. the red marks on the intake are where the holes would need to get opened up... the red lines on the valve covers are where the ports are located. rts on the head are-
I'm no expert, but it appears that the holes were not drilled properly in the first place. Could have been sold as a second the first time around. That's definitely not centered in the flange! KK
That's what I'm thinking..it was made on a Friday, or a Monday ! Sent from my SM-G960U using The H.A.M.B. mobile app
Uhhhhh, come on really... why the hell would I have not checked that- Sent from my SM-G960U using The H.A.M.B. mobile app
If your block has been decked and your heads have been shaved , you may have to mill the intake to achieve a fit .. or the intake was milled previously for another modified engine ..
Would be my guess also, although there does seem to be some offset to some of the manifolds bolt holes. How well do the gaskets fit the heads and/or manifold? You'll probably have to do some port matching after getting the mounting figured out. Bring an automotive machinist home for dinner, and see what he thinks. I am Butch/56sedandelivery.
Before you start carving out the bolt holes you need to take a Gasket and check port alignment between them. Moving the holes may just bring on a different issue. Maybe your motor is a 303 and not a 324. Deck height changed as the ci. got bigger. The Wizzard
Had the exact same issue on my 392 Hemi. Felt like a dummy too. I was installing the blower manifold and no matter what I did the bolt holes just did not line up. I am thinking I have maybe a 354 or 331 blower manifold which are not tall deck. As a last resort I put the gaskets under the manifold and damn every thing was just fine. I hole for you it is this simple as well...
This ^^^^^ The manifold is sitting high which suggests the block or heads have been milled Not the manifold, If it had been milled it would drop down further into the valley [being narrower]
I matched the gaskets up.. when the gasket was aligned with the bolt holes, the ports were off... when I aligned the ports you could see that the holes were off... Sent from my SM-G960U using The H.A.M.B. mobile app
There is a really good chance that it's been decked and milled.. I had the engine built about 7 years ago.. although I've been running it with the stock cast iron intake and had no problems.. (and had that intake on an off a handful of times) needless to say after much measuring, and compairing.. matching gaskets to ports .... after all that I got the manifold centered, and where it wants to live.. traced the boarder with a sharpie.. pulled the intake coated the intake mating surface with grease and carefully dropped it back to the red sharpie lines.. the witness marks looked perfect (port alignment) .. The holes are hogged(it didn't take much) and the intake is mounted- Let's see how it runs!? Sent from my SM-G960U using The H.A.M.B. mobile app
So I just went out and verified a 354 intake fits a 303 with no issues. I think your holes are drilled wrong. That's really unusual for a weiand manifold. With the gasket matching both sides like that I wouldn't
I've run into this before too. If the gaskets line up with the ports and bolt holes on the head and when the gaskets line up with the ports on the head and not the holes; I file/grind the bolt holes in the maniflod to fit. I use Belleville washers I buy from McMaster- Carr. Many times I've needed to use gaskets which were just cardboard appearing. Mr Gasket sold them at one time in different thicknesses. They did not have the rubber looking ring. One time because the heads or block had been milled enough I used a 15" body file and remove metal off both sides of the manifold. It never leaked. Sounds crude but it was a long time ago and I still have the body files.
Wizzard..the 303 and 324 are same. The differences in those 2 are sizes of the ports. But either manifold is bolt-able to the other engine. But, earlier tonight I saw this thread, I was wondering if that new manifold started life as a 57-58 371? If it was for a 371, then the two gasket surfaces need to be cut a bit over 100 thou to fit into the tighter valley....and then I thought that some filing of holes are needed to fit it onto a 324 ? I do have a 57 J2 intake that was purchased new in the late 50s by a local racer, and it was cut to fit a 324. Edit>>>I see you just now compared your two 324/303 manifolds as I had typed this.. .
I also checked that , as I have a 303 intake.. the ports are smaller, but it'll bolt up- Sent from my SM-G960U using The H.A.M.B. mobile app
I had thought that this may have been for a 57/58 as well... the odd part was that the ports lined up, but the holes didn't- Sent from my SM-G960U using The H.A.M.B. mobile app
The 371 manifold ports will line up perfectly for a 324 "if" the 371 manifold gasket surfaces are milled down to make the manifold "narrower". .
Ahhh , this would make sense. As the ports have been cleaned up a bit.. possibly they just never finished the job?? At this point it doesn't matter why(although this type of scenario can drive me nuts to figure out) .. as long as it runs good- Sent from my SM-G960U using The H.A.M.B. mobile app
Well, she runs like a top! The truck has quite a bit more power... aside from the intake needing some massaging the rest of the job was a breeze- its idling at 650rmp @15" vacuum- the truck is a absolute screamer! Sent from my SM-G960U using The H.A.M.B. mobile app
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